Filter



Sept. 9, 1952 M oss 2,609,933

FILTER Fi led June 5, 1948 5. fl R088 INVENTOR V I I I n ATTORNEYS Patented Sept. 9, 1952 UNITED? "STATES PATENT QFFlCE FILTER Margaret Ross, Lincoln Park, Mich.

Application June 3, 1948, Serial No. 30,879

1 Claim.

This invention relates to improvements in filters.

An object of the invention is to provide an improved filter for filtering various liquids, and means for selectively controlling the filtering action of said filter.

Another object of the invention is to provide an improved adjustable spring controlled filter for filtering various kinds and quantities of liquids.

A further object of the invention is to provide an improved liquid filter which will be highly efiicient in operation, and relatively inexpensive to manufacture and produce.

Other objects will appear as the description proceeds.

In the accompanying drawing which forms a part of this application,

Figure 1 is a vertical sectional view through the improved liquid filter;

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1, and

Fig. 3 is an enlarged detail sectional view through a portion of one of the apertured filter sleeves showing a double coil spring disposed thereabout.

Like characters of reference are used throughout the following specification and the accompanying drawing to designate corresponding parts.

In carrying out the invention, there is shown and provided a cylindrical filter housing I having one end closed as at 2, and its opposite end open. The closed end 2 of the filter housing I is thickened at its central portion and is apertured at 3 and threaded to receive the threaded end 4 of a supply or inlet pipe 5 through which the liquid to be filtered passes into the filter housing I.

A filter supporting plate 6 of circular shape and.

of the same diameter as the diameter of the filter housing I is provided, and supports a plurality of hollow hexagonal filtering spacer tubes 1 in circumferential arrangement with their ends extending through said plate 6 and swaged into locked position thereon. A centrally disposed stud ii is supported axially of the plurality of filtering spacer tubes 1 and is likewise extended through the plate 6 and swaged into position thereon.

Vertically spaced passages 9 are bored or drilled radially through the plurality of hexagonal filtering spacer tubes 1 for permitting the liquid after filtering to pass into the hollow tubes 1 and out through their ends below the plate 6.

Coil springs ill will be disposed about the plurality of hexagonal filtering spacer tubes 1 with an end of each spring engaging the plate 6, and their opposite ends engaging and held in place by a retaining cap disk II, which will be held in place by the threaded screws I2 extending therethrough and into the threaded ends of the bores l3 formed in the tubes 1 and in the bore M in the centrally disposed stud 8. If desired, a second coil spring l5 may be disposed about the inner coil spring in about each filtering spacer tube 1 to provide a greater filtering action. Further variation in filtering action may be had by using more or less coils or convolutions in the coil springs Ill.

The filter supporting plate 6 will bee-disposed upon the open end of the filter housing I, and the flanged filter closure head l6 will be disposed in contact therewith and secured by the threaded bolts H which extend through the head IS, the plate 6 and into the threaded bores IS in the filter housing I.

It will be seen that there is a liquid collecting chamber [9 formed between the plate Band the filter housing closure head 16. Also, the central portionof the head [6 will be thickened and axially ported at 2|] to receive the threaded end 2| of the outlet pipe 22.

While the preferred embodiment of the instant invention has been illustrated and described, it will be understood that it is not intended to limit the scope of the invention thereto, as many minor changes in detail of construction may be resorted to without departure from the spirit of the invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

A liquid filter including a cylindrical housing having a closed end and an open end, a filter supporting plate removably connected to the housing and disposed over the open end of said housing, a removable closure head secured over said supporting plate in spaced relation therewith providing a collecting chamber, a plurality of independent hexagonal filtering tubes providing fiat surfaces, supported circiunierentially upon said plate in spaced relation with each other, the tubes extending through said plate communicating with the collecting chamber, said tubes having radially extending passages through their walls, certain of said radially extended passages extending through MARGARET ROSS.

REFERENCES CITED The following references are of record in the file of this patent:-

UNITED STATES PATENTS v Number Name Date Number 10 :Number Bower Nov. 1, 1881":

Name Date Howes Apr. 5, 1887 Smith Oct. 24, 1905 Beldam Dec. 22, 1936 Cuno May 28, 1940 Neisingh Aug. 28, 1945 Vokes June 17, 1947 FOREIGN PATENTS Country- Date Great Britain Mar. 30, 1909 Great Britain Aug. 30, 1928 

